【前沿讲坛】Sierpinski molecules, carbon schwarzites and porous materials for catalytic and electronic applications
讲座名称：
【前沿讲坛】Sierpinski molecules, carbon schwarzites and porous materials for catalytic and electronic applications
讲座时间：
2018-12-21
讲座人：
徐政涛
形式：
校区：
兴庆校区
实践学分：
讲座内容：
讲座人：徐政涛 教授 香港城市大学Department of Chemistry, City University of Hong Kong
地点：西二楼 A102，曲江校区
时间：2018年12月21日，上午9:30
主办单位：前沿科学技术研究院
The porous and crystalline structures of metal-organic frameworks provide a versatile medium in which to study phenomena arising from order and disorder in the solid state. In the first part, we employ a two-step strategy for accessing crystalline porous covalent networks of highly conjugated π-electron systems. For this, we first assembled a crystalline metal-organic framework (MOF) precursor based on Zr(IV) ions and a linear dicarboxyl linker molecule featuring backfolded, highly unsaturated alkyne backbones; massive thermocyclization of the organic linkers was then triggered to install highly conjugated, fused-aromatic bridges throughout the MOF scaffold while preserving the crystalline order, see Figure 1. The resultant polycyclic aromatic network exhibits greatly enhanced stability, electroactivity and charge transport. In the second part, we will describe progresses in accessing porous molecular solids from a novel class of self-similar molecules featuring symmetrically backfolded geometries that sharply contrast the traditional starburst, outgoing shapes of dendrimers. These molecular materials features promising properties of solution processability, water and air stability, and distinct photoelectric activity.
相关视频